Home / 388,045,650.80-582,149,346.60-129,341,241.20

Finding the Fourth Proportional to 388,045,650.80, 582,149,346.60 and 129,341,241.20

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Solution

The fourth proportional to 388,045,650.80, 582,149,346.60 and 129,341,241.20 is: 194,038,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,045,650.80 : 582,149,346.60 = 129,341,241.20 : x
  2. Step 2: Convert to fraction form
    388,045,650.80/582,149,346.60 = 129,341,241.20/x
  3. Step 3: Cross multiply
    388,045,650.80x = 582,149,346.60 × 129,341,241.20
  4. Step 4: Simplify right side
    388,045,650.80x = 75,295,919,053,013,008
  5. Step 5: Solve for x
    x = 75,295,919,053,013,008/388,045,650.80
  6. Step 6: Final answer
    x = 194,038,817.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.